Table 1.
Volume of neuropils of the Bombus terrestris standard brain and the ten individual brains. Mean neuropil volumes and standard deviation of 30 segmented brain compartments in ten brains (mean volume, SD (µm3)). Additionally, the volumes/standard deviations of the standard brain neuropils (standard brain (µm3)), and the relative volumes/standard deviations of the neuropils in the ten individual brains, either including all neuropils (relative volume (%), SD (%)), or excluding lamina and ocellar plexi (Relative volume without LA, OC, SD (%)) were calculated. Last column: relative volume of all neuropils in standard brain. Neuropils: left and right is signified by -l and -r respectively, antennal lobe (AL), anterior optic tubercle (AOTu), medial basal ring (MBR), lateral basal ring (LBR), lower division of the central body (CBL), upper division of the central body (CBU), central complex (CX), medial collar (MCO), lateral collar (LCO), lamina (LA), lateral lip (LLIP), medial lip (MLIP), lobula (LO), mushroom body (MB), medulla (ME), paired noduli (NO), ocellar synaptic plexi (OC), optic lobes (OL), protocerebral bridge (PB), pedunculus and lobes (PED_LOB), remaining neuropils (RN)
| Neuropil | Mean volume (µm3) | SD (µm3) | Standard brain (µm3) | Relative volume (%) | SD (%) | Relative volume without LA, OC (%) | SD (%) | Standard brain (%) |
|---|---|---|---|---|---|---|---|---|
| RN | 1.99 × 108 | 2.16 × 107 | 2.31 × 108 | 34.7 | 1.8 | 39.1 | 1.8 | 34.5 |
| OC | 2.16 × 107 | 3.54 × 106 | 2.40 × 107 | 3.8 | 0.5 | / | / | 3.6 |
| AOTu-r | 1.01 × 106 | 2.82 × 105 | 1.93 × 106 | 0.2 | 0.04 | 0.2 | 0.04 | 0.3 |
| AOTu-l | 1.10 × 106 | 2.26 × 105 | 1.92 × 106 | 0.2 | 0.02 | 0.2 | 0.03 | 0.3 |
| AL-r | 1.52 × 107 | 2.93 × 106 | 1.67 × 107 | 2.6 | 0.3 | 3.0 | 0.3 | 2.5 |
| AL-l | 1.50 × 107 | 2.79 × 106 | 1.71 × 107 | 2.6 | 0.3 | 2.9 | 0.3 | 2.6 |
| CX | 3.09 × 106 | 6.45 × 105 | 3.91 × 106 | 0.5 | 0.1 | 0.6 | 0.1 | 0.6 |
| PB | 4.11 × 105 | 1.33 × 105 | 3.50 × 105 | 0.1 | 0.02 | 0.1 | 0.03 | 0.1 |
| CBU | 2.04 × 106 | 3.66 × 105 | 2.71 × 106 | 0.4 | 0.1 | 0.4 | 0.1 | 0.4 |
| CBL | 4.66 × 105 | 1.03 × 105 | 6.61 × 105 | 0.1 | 0.02 | 0.1 | 0.02 | 0.1 |
| NO | 1.71 × 105 | 4.29 × 104 | 1.89 × 105 | 0.03 | 0.01 | 0.03 | 0.01 | 0.03 |
| OL | 1.93 × 108 | 3.67 × 107 | 2.30 × 108 | 33.5 | 3.9 | 29.2 | 2.6 | 34.4 |
| LA-r | 2.13 × 107 | 5.10 × 106 | 2.48 × 107 | 3.7 | 0.4 | / | / | 3.7 |
| LA-l | 2.33 × 107 | 9.67 × 106 | 2.44 × 107 | 4.0 | 1.3 | / | / | 3.7 |
| ME-l | 5.56 × 107 | 9.28 × 106 | 6.86 × 107 | 9.6 | 0.8 | 10.9 | 1.0 | 10.3 |
| ME-r | 5.53 × 107 | 8.02 × 106 | 6.75 × 107 | 9.6 | 0.8 | 10.8 | 0.9 | 10.1 |
| LO-r | 1.91 × 107 | 1.96 × 106 | 2.21 × 107 | 3.3 | 0.2 | 3.8 | 0.3 | 3.3 |
| LO-l | 1.88 × 107 | 2.65 × 106 | 2.27 × 107 | 3.3 | 0.4 | 3.7 | 0.5 | 3.4 |
| MB | 1.26 × 108 | 2.07 × 107 | 1.42 × 108 | 21.9 | 2.6 | 24.7 | 2.8 | 21.2 |
| LCO-l | 1.34 × 107 | 1.51 × 106 | 1.56 × 107 | 2.3 | 0.1 | 2.6 | 0.2 | 2.3 |
| LCO-r | 1.30 × 107 | 1.84 × 106 | 1.61 × 107 | 2.3 | 0.3 | 2.6 | 0.3 | 2.4 |
| MCO-r | 1.06 × 107 | 1.33 × 106 | 1.25 × 107 | 1.9 | 0.1 | 2.1 | 0.2 | 1.9 |
| MCO-l | 1.08 × 107 | 1.70 × 106 | 1.28 × 107 | 1.9 | 0.2 | 2.1 | 0.2 | 1.9 |
| LBR-r | 2.59 × 106 | 6.71 × 105 | 2.88 × 106 | 0.4 | 0.1 | 0.5 | 0.1 | 0.4 |
| LBR-l | 2.65 × 106 | 9.07 × 105 | 2.96 × 106 | 0.4 | 0.1 | 0.5 | 0.1 | 0.4 |
| MBR-r | 2.20 × 106 | 4.80 × 105 | 2.76 × 106 | 0.4 | 0.1 | 0.4 | 0.1 | 0.4 |
| MBR-l | 2.42 × 106 | 7.05 × 105 | 2.47 × 106 | 0.4 | 0.1 | 0.5 | 0.1 | 0.4 |
| PED_LOB-l | 2.34 × 107 | 2.74 × 106 | 2.62 × 107 | 4.1 | 0.3 | 4.6 | 0.3 | 3.9 |
| PED_LOB-r | 2.37 × 107 | 2.35 × 106 | 2.57 × 107 | 4.1 | 0.3 | 4.7 | 0.3 | 3.8 |
| LLIP-r | 5.40 × 106 | 1.15 × 106 | 4.70 × 106 | 0.9 | 0.1 | 1.1 | 0.1 | 0.7 |
| LLIP-l | 4.73 × 106 | 1.88 × 106 | 5.78 × 106 | 0.8 | 0.2 | 0.9 | 0.3 | 0.9 |
| MLIP-r | 5.93 × 106 | 1.91 × 106 | 5.36 × 106 | 1.0 | 0.3 | 1.1 | 0.3 | 0.8 |
| MLIP-l | 5.21 × 106 | 1.57 × 106 | 5.89 × 106 | 0.9 | 0.2 | 1.0 | 0.2 | 0.9 |